Mesgari, Arvin & Okoli, Chitu & Mehdi, Mohamad & Nielsen, Finn & Lanamäki, Arto. (2015). "The Sum of All Human Knowledge": A Systematic Review of Scholarly Research on the Content of Wikipedia. Journal of the Association for Information Science and Technology. 66. 10.1002/asi.23172. https://www.researchgate.net/publication/269041455